Successive chapters treat Augustine, Boethius, Abelard, Gilbert of Poitiers
, Peter Lombard, Bonaventure, Albert, Thomas Aquinas, Scotus, and Ockham, but only after reminding us of the need for precision in the use of prepositions (and the rules of operahon for logical sequencing that these undergird) as well as the formal definitions implied by the interplay of such terms as "universals," "accidents," "substances," and "individuals.
The six essays in the volume before us, the seventh volume, show how medieval thinkers like Gilbert of Poitiers
, Scotus, Aquinas, Cajetan, and Buridan employ Aristotelian logic and semantic theories (that is, their understanding of "how concepts latch onto reality") to a variety of theological and philosophical problems including the doctrine of the Trinity and the dispute over the real distinction between essence and existence.
On the other hand, Vacarius's works "lack the polish, the precise application and citation of authorities, and the systematic comprehensiveness of a Gilbert of Poitiers
or a Robert of Melun; nevertheless they contain an element of practical pastoral immediacy" (211-212).
00--Paul Thorn has selected Augustine, Boethius, Abelard, Gilbert of Poitiers
, Peter Lombard, Bonaventure, Albert the Great, Aquinas, Scotus and Ockham whose Trinitarian treatises he examines, explains and submits to logical analysis.
The lack of manuscript study is most troublesome when he arrives at the three weighty twelfth-century monuments, the Glossa Ordinaria, the "media glosatura" of Gilbert of Poitiers
, and the "magna glosatura" of Peter Lombard, all of which lack modern editions.